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Real Time Determination of Water Isotope ratios by Laser Absorption Spectroscopy at 2.73 µm using Kalman Filter

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Kalman filter was applied to measurements of water isotopologue ratios by laser spectroscopy at 2.73 µm. The results obtained in 1-s showed a 1σ precision that required ~30-s averaging when using a simple average approach.

© 2010 Optical Society of America

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